Cam device for lamb knitting-machines.



170. 775,742. PATENTED NOV. 22, 1904.

W. BAGH.

CAM DEVICE FOR LAMB KNITTING MACHINES.

APPLICATION FILED OUT. 20. 1903.

, N9 MODEL. 4 QHEETS-SHBET 1.

No. 775,742. PATENTED NOV. 22, 1904.

" w. BAGH.

0AM DEVICE FOR LAMB KNITTING MACHINES.

. APPLICATION FILED OCT; 20. 1903.

uouonnn. 4 sums-sum a.

m'ze 7772361 0% No. 775,742 PATEN-TED NOV. 22, 1904.

W. BAGH.

0AM DEVICE FOR LAMB KNITTING MACHINES.

APPLICATION FILED 001 20. 1903.

9 MODEL 4 SHEETS-SHEET s.

No. 775,742. PATENTED NOV. 22, 1904.

' W. BAGH.

CAM DEVICE FOR LAMB KNITTING MACHINES.

I APPLICATION FILED OCT. 20. 1903. N0 MODEL. 4 SHEETS-SHEET 4.

I $202 13 %7 Zflie Zmz Ea 6% UNITED STATES Patented November 22, 1904.

PATENT EETEE.

CAIVI DEVICE FOR LAMB KNITTING-MACHINES.

SPECIFICATION forming part of Letters P en No. 7 75,7 12, dated November22, 1904.

Application filed October 20, 1903. Serial No. 177.805- No model.)

To a, whom, it may concern:

Be it known that l, VVILHELM BAoH, manufacturer, a subject of the GrandDuke of Saxe- W eimar, residing at Apolda, in the Grand Duchy ofSaxe-Vv'eimar, German Empire,have invented certain new and usefulImprovements in (lam Devices for Lamb Knitting-Machines, of which thefollowing is a specification.

This invention relates to certain new and useful improvements in camsfor Lamb knitting-machines; and the object thereof is to provide meanscapable of being used to knit one course alternately on each needle-bedwithout traversing the thread-guide from one bed to the other at the endof a course, so as to knit two flat fabrics which may or may not befashioned and which have selvages; furthermore, to operate the centralcam-adjusting stud in such a manner as to render the needles of theparticular bed involved idle and to throw the thread-guide for the samebed out of action when the said stud is operated.

A cam for a Lamb knitting-machine constructed in accordance with thisinvention is illustrated in the accompanying drawings, in which- Figure1 is a vertical section. Fig. 2 is an under side view. Fig. 3 shows thecam in plan, the two central cam-adjusting studs being shown lowered,the front thread-guide switched or turned out, but the back threadguideswitched in, the stopping device of the latter being released. Fig. 4also shows a plan of the cam, but with the central cam-adjusting studsof both sides of the cam raised and the thread-guides switched out butnot secured. Fig. 5 shows the cam in plan with the central studslowered, the front threadguide switched in and secured in that position,and the back thread-guide switched out and also secured in thatposition. Fig. 6 shows another plan of the cam with the central studsswitched out or raised both in front and at the back, and the thread-guides switched out on both sides and secured in those positions. Figs.7 and 8 illustrate vertical sections through the knitting-machine.

The well-known ratchet-wheels 2, arranged at each side of the cam andadvanced by the pawls 1 after each complete reciprocation, are providedin addition to their teeth 6 with the cam-surface 7 for controlling thecentral cam-adjusting studs 3 through the medium of the levers 4.,pivoted at The levers .L are provided with guide-rollers 5, and thewheels 2 are also provided with cams 8. These latter act on a roundedprojection 10, which is adjustably connected, by means of the setscrews9, to one end of a lever 12, pivoted at 11 to the cam or slide casing.The other end of the lever 12 has hinged to it at 13 a slide 15, whichhas its free end provided with a cam-face 14 and behind said cam-face14. with a recess 52 The lever 15 is acted upon by a spring 16 in suchmanner that the adjustable projection 10 of the lever 12 is normall ypressed against the cams 8 of the ratchetwheel 2, Fig. 3. The free endof the slide 15 acts on the driver 18 of the thread-guide orthread-guide bar 19. Said driver 18 is in the form of a slide and isconstantly held by a spring 17 in a lowered position. At the upper endof the thread-guide driver 18 is arranged for this purpose adownwardly-projecting pin 20, which is acted upon at the proper time bythe cam-face 1 1 of the slide 15, so that the thread-guide driver ismoved in or out.

The driver 18 acts merely as a tappet for the thread-guide rail,provided with projections 19, which rail or bar (as will be seen inFigs. 7 and 8, which are vertical sections through the knitting-machine)carries in the well-known manneror is secured to the threadguide proper,32. WVhen therefore the driver 18 or thread-guide tappet is moved sothat it is engaging between the projections (teeth) 19 of thethread-guide bar, Figs. 1, 3, 7 on the right and Fig. 5 on the left,when the slide of the knitting-machine moves the threadguide 32 isforced to participate in its movement. The thread-guide 32, andconsequently its bar or rail and its projections 19. remain, however,stationary when the driver 18 does not engage between the projections19. (See 4 and 8 on the left and on the right hand 51 e.

If it is desired that the thread-guide driver be moved in or outsimultaneously with the central stud 3, the slide 15 is allowed to movefreely. If, on the contrary, it is desiredthat the central stud 3 shouldwork and the threadguide be switched out, the driver 18 of thethread-guide is secured in its upper position (see Fig. 6) by thesecuring of the slide 15 through the medium of a hand-lever 21, retainedin position by apin 22, which engages behind the said lever 21 when theslide 15 is in such positionthat the projection 10 of the lever 12 canno longer be reached by the cams 8 of the ratchet-wheel 2 when thelatter is rotating. The slide 15 is therefore prevented by the lever 21and the pin 22 from escaping from its secured inoperative position,while the threadguide driver 18 is itself prevented from returning tothe operative position, Figs. 2 and 6, by its pin 20 being raised on aprojection 2 1, having a cam-face 28, said projection 2 1 being carriedby a slide 25, provided with a handle 26.

When it is desired to release the threadguide driver 18, the slide isplaced in such position that the pin 20 of the driver 18 is no longerraised by the projection 24 of the slide 25. (See Fig. 2.) The operationis similar for releasing the slide 15, the hand-lever 21 being raised,whereupon the pin 22 of the slide 15, withdrawn by the spring 16, comesin front of the hand-lever 21. (See Figs. 3 and 1.)

The thread guide driver 18, with the switched-out slide 15, is securedin inoperative position by the pin 20 of the driver 18, engaging withthe recess 3 of the slide 15, Fig. 5,

'front.

The spring-pawl 1 of the ratchet-wheel 2 is mounted at the end of a rail27, longitudinally movable on the cam, provided with a downward tappet28, adjustable in the longitudinal direction of the said rail andstriking a spring' can be moved by means of a hand-lever 31,

provided with a wedge-shaped projection 30, in such manner that iteither projects into the path of the tappet 28 or does not come incontact with it during the movement of the slide or cam.

Z is a stop-pin on the bar 27, controlling its extreme position.

The driving device for the pawl 1 or the ratchet-wheel 2 is well knownand does not form part of this invention, which relates only to thedevice enabling the thread-guide to be simultaneously thrown in or outof gear with the throwing in or out of gear of the central lever 3.

Having now particularly described and ascertained the nature of my saidinvention and in what manner the same is to be performed, I declare thatwhat I claim is-* 1. In a cam for Lamb knitting-machines, means forthrowing the thread-guide into and out of gear simultaneously with thethrowing into and out of operation the central cam-adjusting stud, saidmeans comprising a threadguide driver, a slide adapted to engage saiddriver for actuating it, a lever connected with said slide and adaptedwhen operated to actuate the slide, and means engaging with said leverfor operating it.

2. In a cam for Lamb knitting-machines, means for throwing thethread-guide into and out of gear simultaneously with the throwing intoand out of operation the central cam-adjusting stud, said meanscomprising a threadguide driver, a slide adapted to engage said driverfor actuating it, a lever connected with said slide and adapted whenoperated to actuate the slide, means for throwing into and out ofoperation the cam-adjusting stud, and operating means for said lever andthe means for throwing the cam-adjusting stud into and out of operation.

3. In a cam for a Lamb knitting-machine, means for automaticallythrowing the threadguide into and out of gear simultaneously with thethrowing into and out of operation of the central cam-adjusting stud.

4. A cam for a Lamb knitting-machine comprising means for throwing thethread-guide into and out of gear simultaneously with the throwing intoand out of operation the central cam-adjusting stud, said meanscomprising a thread-guide driver, a slide having a cam-face adapted toengage with said driver to actuate it, a lever connected with said slideand provided with an adjustable projection and adapted when actuated tooperate said slide, and means engaging said projection, causing therebythe actuation of said. lever.

5. A cam for a Lamb knitting-machine comprising means for throwing thethread-guide into and out of gear simultaneously with the throwing intoand out of operation the central cam-adjusting stud, said meanscomprising a threadguide driver provided with a pin, a slide having acam-face adapted to engage said pin to actuate the driver, a leverconnected with said slide and provided with an adjustable projection andadapted when actuated to operate said stud, and means engaging saidprojection forcausing the actuation of the lever.

In testimony whereof I have hereunto set my hand in presence of twosubscribing witnesses.

WILHELM BACH.

Witnesses:

PAUL LEIOHMANN, MAX MEYER.

